Fastener



July 3, 1928. 1,675,792

l F. s. CARR FASTENER original Filed Feb. 26, 1925 ,a 6 e e vPatented July 3, 19.28.

l UNITED STATES 1,675,792 PATENT OFFICE.

FRED S. CARR, OF NEWTON, MASSACHUSETTS, .ASSIGNOR TO CARR FASTENER COM- PANY, OF CAMBRIDGE, MASSACHUSETTS, A CORPORATION OF MAINE.

FASTNER.

Original application led February 26, 1925, Serial No. 11,700. Divided and this application led August 25, 1925.

This invention aims to provide improvements in separable fasteners and more particularly to a stud unit.

The application is a division of my prior application, Serial No. 11,700, filed Feb,- ruary 2G, 1925.

In the drawings, which illustrate a preferred embodiment of my invention:-

Fig. 1 is an elevation view of a window and window frame showing one use of my invention;

Fig. 2 is a section on the line 2-2 of Fi g. 1, showing the trim 4strip secured to the window frame by stud and socket fastening means; Fig. 3 is a plan view of a portion of the trim strip showing a stud unit secured thereto;

Fig. 4 is a sectionof the trim strip showing one oi' the stud units being secured thereto by the use of a suitable tool;

Fig. 5 includes a side elevation and an under side view of the casing part of the stud unit; and

Fig. 6 is a plan section on the line 6-6 of Fig. 2.

Referring to the drawings, I have. shown a quick detachabletrimming strip partielllarly, though not exclusively, useful in vehicle body construction where a neat edge strip, which may be removed for access to underlying parts, is required.

The installation illustrated includes a frame part or body part ,1, herein shown as sheet metal, an upholstery fabric 2 for covering inside portions of the body part v1 and a `wooden trim strip 3. The wooden trim strip is secured to the body part by stud and socket fasteners so that the strip may be easily., and quickly applied to or taken from the frame part 1. When the strip is assembled Vwith the rest of the installation, the stud and socket fastening elements are concealed by the strip as is the edge of the vupholstery fabric 2, thus providing a neat installation with no exposed metal fastening means.

The stud and socket 'fastening means include stud-receiving apertures 4 formed in the body part as shown in Fig. 2, and stud units presenting resilient aperture-engaging stud parts 5 and casing parts 5a. The resilient aperture-engaging part 5 includes a head 6, a neck 7, shank portion S and rein- Serial No. 52,322.

forced base 9 substantially as shown and described in my co`pending application Serial No. 10,882, filed herewith. The casing part a is pressed from a'single piece of` metal and has a front face 10 presenting an aperture 11 therethrough and a peripheral wall portion 12, havingV a series of short narrow slits 13 which form a series of easil distortable portions 14 providing means or attaching theicasing to the trim strip as more fully hereinafter described.

Assembly of the stud units with the trim strip is effected by first forming recesses 15 in the trim strip 3 and then placing a stud part 5 and casing part 5a into each recess as shown in Fig. 2. One edge of the wall portion 12, of one of the stud units, seats against the bottom of the recess and fits the wall closely so that, when pressure is exerted upon the casing 5a by the tool 16 (Fig. 4) the easily distortable portions 14 may be forced outwardly from the wall portion 12 into the wall of the recess in the trim strip as shown in Figs. 2 and 6. These distorted wedge-shaped portions 14 grip the Wood firmly and hold the stud parts in assembled relation with the trim strip. A slightly raised portion or boss 17 is provided at the bottom of each recess 15 to take up the eX- cess space between the bottom of the recess against which the casing seats and the bottom of the aperture-engaging stud part 5, thereby preventing unnecessary movement between the parts of the stud unit.

W'hen the stud units are completely as sembled with the trim strip 3, the front face 10 of the casing 5EL lies flush with the inner face of the trimstrip 3 and the head and neck of the aperture-engaging part extends through the .aperture 11 and beyond the inner face of the trim Strip.

To provide for mi'salignment of stud heads with their cooperating apertures, and

thereby do away with the neceessity of accurate and expensive machine work,I have provided means for permitting the apertureengaging parts t0 shift laterally relative to their casings, for alignment with their co-` operating apertures presented by the bodyv part` 1. This lateral shifting is permitted by providing a casing 5a and aperture 11 relatively larger in diameter than the base 9 and neck 7 of the aperture-engagingpart 5.

When the parts of the installatlon are com letely assembled as showniin Fig. 2, the eadsG and necks 2I of the stud units pass through apertures 18 in the upholstery fabric and engage the walls surrounding the apertures v4. Thus the edge of thevupholstery fabric is gripped tightly between the trim strip and the body part l as shown in F ig. 2. A

While I have shown and described a preferred embodiment of my invention, it will be understood that I have done so for purposes of clarication and not limitation, my invention being best defined in the appended claims.

Claims:

1. A fastener stud unit including a casing having a collapsible peripheral wall portion for securing said casing to a support and a socket-engaging stud part assembled with said casing and adapted to be secured to lsaid support by the collapsible wall portion of said casing.

2. A fastener stud unit including a casing having a collapsible' peripheral wall portion for securing said casing to a support and a socket-engaging stud part held in position by said casing for engagement with a-l suitable socket, said socketfengagingpart shiftable laterally relative to' said casing for 3 alignment with a stud-receiving aperture presented by said suitable socket.

3. A fastener stud-unit including a casing having a peripheral wall presenting a series stud part, said stu of fingers between two continuous portions, said fingers adapted to be forced outwardly to secure said casing to a support, and a socket-engaging stud member having a base within 'said casing, and a head and neck portion extending through and beyond said casingfsaid stud shiftable laterally relative to said casing for engagement with a socket.

4. A fastener stud unit including a casing having a peripheral wall presenting a series of fingers between two continuous portions, said fingers adapted to be forced outwardly to secure said casing to a support, and a socket-engaging stud member having a base within said casing and a contractible and expansible head and neck portion extending through and beyond said casing, said stud shiftable laterally relative to said casing for engagement with a socket.

5. A fastener stud unit comprising, in combination, a casin part and a resilient part shiftable to a limited extent in any transverse direction relative to said casing part when secured to a support, and said casing part presenting an aperture through which a ortion of the stud is exposed and a collapsigle peripheral wall for engagement with a support to secure the stud unit thereto.

In testimony whereof, I have signed my name to this specification.

FREDV S. CARR. 

